#include<bits/stdc++.h>
using namespace std;
#define int long long
const int M=1e4+5;
int n,q;
string s1,s2;
signed main(){
	freopen("replace.in","r",stdin);
	freopen("replace.out","w",stdout);
	cin.sync_with_stdio(0);
	cin.tie(0);
	cin>>n>>p; 
	for(int i=1;i<=n;i++)cin>>s1>>s2;
	for(int i=1;i<=q;i++)cin>>s1>>s2;
	cout<<0;
	return 0;
}

